A strain can be constituted-of-or-filled-with (bird flu virus).Logical formLearned from35 sentences. A virus may be reported.Logical formLearned from35 sentences. A list can be constituted-of-or-filled-with viruses.Logical formLearned from35 sentences. A virus can be prevalent.Logical formLearned from35 sentences. A threat may be posed by a virus.Logical formLearned from35 sentences. A male may test positive for a virus.Logical formLearned from35 sentences. Birds may spread a virus.Logical formLearned from35 sentences. Women may be infected with a virus.Logical formLearned from35 sentences. A (virus infection) can be respiratory.Logical formLearned from35 sentences. A virus may undergo a movement.Logical formLearned from35 sentences. A virus can be seasonal.Logical formLearned from35 sentences. A virus may enter a country.Logical formLearned from34 sentences. A virus may be transmitted.Logical formLearned from34 sentences. A virus may develop an ability.Logical formLearned from34 sentences. A virus may be dubbed.Logical formLearned from34 sentences.